#include "ymodem.h"








// 发送文件
bool sendYmodemFile(QString filePath, QIODevice *device)
{
    unsigned char fileBuff[64*1024]; //文件数据缓冲
    YModemtype YModem;
    QFileInfo fileInfo(filePath);
    QFile file(filePath);

    if (!file.open(QFile::ReadOnly))
    {
        QMessageBox::critical(NULL, "Error", "can't open file");
        return 1;
    }
    long long fileLen = file.size(); //数据长度
    unsigned int QuantitySent = fileLen/1024; //判断数据包1K发送数量
    unsigned int EndSize = fileLen%1024; //判断最后一帧的数据大小

    qDebug() << "数据长度" << fileLen;
    qDebug() << "判断数据包1K发送数量" << QuantitySent;
    qDebug() << "判断最后一帧的数据大小" << EndSize;

    QDataStream dataStream(&file);
    dataStream.readRawData((char *)fileBuff,fileLen);
    unsigned short FileCheck = calculateCRC16(fileBuff,fileLen);
    qDebug() << "整包数据校验" << FileCheck;
    file.close();

#define ota 0

#if ota
    //发送芯片复位命令
    qDebug() << "发送复位命令";
    unsigned char sendData1[] = {0x6A,0x03,0x60,0x46,0x43};
    device->write((const char *)sendData1,5);
    //等待设备回复
    if(device->waitForReadyRead(10000)) // 10秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    QThread::sleep(2); //延时2s

    //发送开始ota命令
    unsigned char sendData[20] = {0x6A,0x04,0x42,0x00,0x46,0x43};
    device->write((const char *)sendData,6);
    qDebug() << "发送开始ota";

    //等待设备回复
    if(device->waitForReadyRead(10000)) // 10秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

#endif

    qDebug()<<"等待接收方发送启动命令";
    //等待设备回复启动ota
    if(device->waitForReadyRead(20000)) // 20秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    //发送起始帧
    qDebug() << "发送起始帧";
    YModem.protocolHeader = SOH;
    YModem.FrameNumber = 0x00;
    YModem.FrameNumberComplement = 0xFF;
    YModem.Filename = (unsigned char*)qPrintable(fileInfo.fileName());
    YModem.Fliezise = file.size();
    sendStartFrame(device,&YModem);

    //等待起始帧响应
    if(device->waitForReadyRead(10000)) // 10秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    //发送1K数据包
    for(int i = 1; i<QuantitySent+1; i++)
    {
        YModem.protocolHeader = STX;
        YModem.FrameNumber = i;
        YModem.FrameNumberComplement = ~YModem.FrameNumber;
        YModem.Data = &fileBuff[(i-1)*1024];
        sendDataFrame1024(device,&YModem);
        qDebug() << "发送1K数据包：" << i;
        if(device->waitForReadyRead(5000)) // 5秒内等待设备就绪可读
        {
            QByteArray data = device->readAll();
            qDebug() << "Received data:" << data.toHex();
        }else
        {
            qDebug() << "Timeout occurred. No data received.";
            return 1;
        }
    }

    //最后一帧数据包
    if(EndSize == 128)
    {
       qDebug() << "发送最后一帧数据包(最后后一帧等于128)";
       YModem.protocolHeader = SOH;
       YModem.FrameNumber = QuantitySent+1;
       YModem.FrameNumberComplement = ~YModem.FrameNumber;
       YModem.Data = &fileBuff[QuantitySent*1024];
       sendDataFrame128(device,&YModem);
    }
    else if(EndSize > 128)
    {
        qDebug() << "发送最后一帧数据包(最后后一帧大于128)";
        YModem.protocolHeader = STX;
        YModem.FrameNumber = QuantitySent+1;
        YModem.FrameNumberComplement = ~YModem.FrameNumber;
        YModem.Data = &fileBuff[QuantitySent*1024];
        for(int i = 0; i<(1024-EndSize); i++)
        {
            YModem.Data[EndSize+i] = 0x1A;
        }
        sendDataFrame1024(device,&YModem);
    }
    else if(EndSize < 128)
    {
        qDebug() << "发送最后一帧数据包(最后后一帧小于128)";
        YModem.protocolHeader = SOH;
        YModem.FrameNumber = QuantitySent+1;
        YModem.FrameNumberComplement = ~YModem.FrameNumber;
        for(int i = 0; i<(128-EndSize); i++)
        {
            YModem.Data[EndSize+i] = 0x1A;
        }
        sendDataFrame128(device,&YModem);
    }
    if(device->waitForReadyRead(5000)) // 5秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    //发送结束传输命令
    qDebug() << "发送第一次结束传输命令";
    unsigned char buffer2 = 0x04;
    device->write((const char *)&buffer2,1);
    if(device->waitForReadyRead(5000)) // 5秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    //发送结束传输命令
    qDebug() << "发送第二次结束传输命令";
    device->write((const char *)&buffer2,1);
    if(device->waitForReadyRead(5000)) // 5秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    //发送结束帧
    qDebug() << "发送结束帧";
    YModem.protocolHeader = SOH;
    YModem.FrameNumber = 0x00;
    YModem.FrameNumberComplement = 0xFF;
    YModem.Data = &fileBuff[0];
    for(int i = 0; i<128; i++)
    {
        YModem.Data[i] = 0x00;
    }
    sendEndFrame(device,&YModem);
    if(device->waitForReadyRead(5000)) // 5秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }

    QThread::msleep(1500); //延时1.5s

#if ota
    //发送整包校验
    qDebug() << "发送整包校验";
    sendData[0] = 0x6A;
    sendData[1] = 0x08;
    sendData[2] = 0x42;
    sendData[3] = 0x01;
    sendData[4] = 0xAA;
    sendData[5] = 0x55;
    sendData[6] = 0x00;
    sendData[7] = 0x00;
    //splitData16To8(FileCheck,&sendData[6],&sendData[7]);
    sendData[8] = CalChecksum(&sendData[1],7);
    sendData[9]= 0x43;
    device->write((const char *)sendData,10);
    if(device->waitForReadyRead(10000)) // 10秒内等待设备就绪可读
    {
        QByteArray data = device->readAll();
        qDebug() << "Received data:" << data.toHex();
    }else
    {
        qDebug() << "Timeout occurred. No data received.";
        return 1;
    }
#endif

    //关闭串口
    device->close();

    return 0;
}

//发送起始帧
void sendStartFrame(QIODevice *device,YModemtype *YModem)
{
    unsigned char buff[133] = {0};
    unsigned int indexes = 3;

    buff[0] = YModem->protocolHeader; //协议头
    buff[1] = YModem->FrameNumber; //帧序列号
    buff[2] = YModem->FrameNumberComplement; //帧序列号补码
    for(int i = 0; i<NameLenMax; i++) //文件名
    {
        buff[3+i] = YModem->Filename[i];
        indexes++;
        if(YModem->Filename[i] == 0)
            break;
    }

    sprintf((char *)&buff[indexes],"%d", YModem->Fliezise); //文件大小
    //indexes += sizeof(&buff[indexes])+1; //调整索引

    YModem->crcData = calculateCRC16(&buff[3],128);
    splitData16To8(YModem->crcData,&buff[131],&buff[132]);

    device->write((const char *)buff,133);
}


//发送128字节数据帧
void sendDataFrame128(QIODevice *device,YModemtype *YModem)
{
    unsigned char buff[133] = {0};

    buff[0] = YModem->protocolHeader; //协议头
    buff[1] = YModem->FrameNumber; //帧序列号
    buff[2] = YModem->FrameNumberComplement; //帧序列号补码
    for(int i = 0; i<128; i++) //数据
    {
        buff[3+i] = YModem->Data[i];
    }

    YModem->crcData = calculateCRC16(&buff[3],128);
    splitData16To8(YModem->crcData,&buff[131],&buff[132]);

    device->write((const char *)buff,133);
}

//发送1024字节数据帧
void sendDataFrame1024(QIODevice *device,YModemtype *YModem)
{
    unsigned char buff[1029] = {0};

    buff[0] = YModem->protocolHeader; //协议头
    buff[1] = YModem->FrameNumber; //帧序列号
    buff[2] = YModem->FrameNumberComplement; //帧序列号补码
    for(int i = 0; i<1024; i++) //数据
    {
        buff[3+i] = YModem->Data[i];
    }

    YModem->crcData = calculateCRC16(&buff[3],1024);
    splitData16To8(YModem->crcData,&buff[1027],&buff[1028]);

    device->write((const char *)buff,1029);
}

//发送结束帧
void sendEndFrame(QIODevice *device,YModemtype *YModem)
{
    unsigned char buff[133] = {0};

    buff[0] = YModem->protocolHeader; //协议头
    buff[1] = YModem->FrameNumber; //帧序列号
    buff[2] = YModem->FrameNumberComplement; //帧序列号补码
    for(int i = 0; i<128; i++) //数据
    {
        buff[3+i] = 0;
    }

    YModem->crcData = calculateCRC16(&buff[3],128);
    splitData16To8(YModem->crcData,&buff[131],&buff[132]);

    device->write((const char *)buff,133);
}

// CRC16查表法，生成CRC16表
static const uint16_t crc16Table[256] = {
    0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
    0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF,
    0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6,
    0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE,
    0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485,
    0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D,
    0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4,
    0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC,
    0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
    0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B,
    0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12,
    0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A,
    0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41,
    0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49,
    0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70,
    0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78,
    0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F,
    0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
    0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E,
    0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256,
    0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D,
    0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
    0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C,
    0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634,
    0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB,
    0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3,
    0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
    0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92,
    0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9,
    0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1,
    0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8,
    0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0
};

//计算CRC16
uint16_t calculateCRC16(const uint8_t *data, size_t length)
{
    uint16_t crc = 0;
    for (size_t i = 0; i < length; ++i) {
        crc = ((crc << 8) & 0xFF00) ^ crc16Table[((crc >> 8) ^ data[i]) & 0xFF];
    }
    return crc;
}

//16位数据转换成高8位和低8位数据函数
void splitData16To8(unsigned short data16, unsigned char *high8, unsigned char *low8)
{
    *high8 = (unsigned char)(data16 >> 8);	// 获取高8位数据
    *low8 = (unsigned char)(data16 & 0xFF);	// 获取低8位数据
}

//xor校验
uint8_t CalChecksum(uint8_t *content, uint8_t len)
{
    uint8_t checksum = 0;
    for(uint8_t i = 0; i < len; i++)
    {
        checksum ^= content[i];
    }
    return checksum;
}
